Which component manages data transfers inside a computer system by implementing the 'Least Recently Used' (LRU) algorithm? MCQ with Answer and Explanation

Which component manages data transfers inside a computer system by implementing the 'Least Recently Used' (LRU) algorithm?
A. Hard drive file allocation table
B. Cache Controller
C. Optical Drive Firmware
D. BIOS Boot Loader
Answer: Option B
Solution (By JKSSB Mock Tests)
The cache controller utilizes replacement policies like Least Recently Used (LRU) to determine which older data blocks to discard when space is needed for new cache lines.

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Practice More Memory and Storage Devices Questions

Question #1
What is the function of a memory scrubber?
A. To erase memory contents
B. To correct errors in memory by reading and rewriting data
C. To clean dust from memory modules
D. To increase memory speed

Correct Answer: Option B


Explanation:
A memory scrubber is a background process that reads memory locations and corrects errors (using ECC) to prevent accumulation of errors.

This question belongs to: Computer Memory and Storage Devices
Question #2
Which type of memory is used to store the firmware that boots the computer?
A. Hard disk
B. RAM
C. ROM (BIOS)
D. Cache

Correct Answer: Option C


Explanation:
The BIOS firmware is stored in ROM (or flash memory) on the motherboard, and it is the first code executed during the boot process to initialize hardware and load the OS.

This question belongs to: Computer Memory and Storage Devices
Question #3
What type of storage is a CD-ROM?
A. Semiconductor storage
B. Optical storage
C. Magnetic storage
D. Solid-state storage

Correct Answer: Option B


Explanation:
CD-ROM (Compact Disc Read-Only Memory) uses laser beams to read microscopic pits and lands on the surface of the disc, classifying it as optical storage.

This question belongs to: Computer Memory and Storage Devices